v3.26.1
Company information - Additional Information (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
shares
Aug. 31, 2025
USD ($)
Jun. 30, 2026
USD ($)
$ / shares
shares
Dec. 31, 2025
shares
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2026
SFr / shares
shares
Disclosure Of Company Information And Operations [Line Items]              
Issue of equity | $ $ 53,100            
Number of equity shares issued 12,104,900            
Sale of shares, price per share (USD per share) | $ / shares $ 4.75            
Number of ordinary shares issued upon exercise (in shares) 1,578,900   1,578,900   1,578,900   1,578,900
At-The-Market offering              
Disclosure Of Company Information And Operations [Line Items]              
Issue of equity | $   $ 50,000 $ 1,171   $ 15,667    
Number of equity shares issued     233,328   3,098,200    
Proceeds from issuing shares | $     $ 1,200   $ 15,667 $ 0  
Ordinary Shares              
Disclosure Of Company Information And Operations [Line Items]              
Shares issued, par value (in dollars per share) | (per share) $ 0.06   $ 0.06   $ 0.06   SFr 0.05
Issued capital              
Disclosure Of Company Information And Operations [Line Items]              
Number of shares issued (in shares) 89,321,220   89,321,220 89,321,220 89,321,220 79,321,220 89,321,220
Number of shares outstanding (in shares) 85,127,825   85,127,825 68,486,338 85,127,825 67,579,560 85,127,825
Issuance of shares to be held as treasury shares (in shares)       10,000,000      
Treasury shares              
Disclosure Of Company Information And Operations [Line Items]              
Number of shares issued (in shares) 4,193,395   4,193,395 20,834,882 4,193,395 11,741,660 4,193,395
Treasury shares | At-The-Market offering              
Disclosure Of Company Information And Operations [Line Items]              
Issue of equity | $     $ 14   $ 197